mysql statement not working -


i'm trying create secure session management each user gets hash , if user logs in somewhere else checks user has logged in hash. way if user forget's log out, system log out account them. sql statement wrote , it's giving me error. can tell me why?

thank you

"select * 'v_pos_user_session userid='$userid' , hash='$hash' , admin='0' time=(select max(time) v_pos_user_session userid='$userid' , admin='0')"  qlstate[42000]: syntax error or access violation: 1064 have error in sql syntax; check manual corresponds mysql server version right syntax use near 'time=(select max(time) v_pos_user_session userid='6' , admin='0')' @ line 1

you have escape time backticks , forgot and

select * v_pos_user_session  userid='$userid'  , hash='$hash'  , admin='0'  , `time`=(select max(time) v_pos_user_session              userid='$userid' , admin='0')

and left unnecessary ' before v_pos_user_session


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